Calibrating The Motor Zoom - Leica MZ16 A User Manual

Initializing
calibration
Calibrating
magnification (CM)
12

Calibrating the motor zoom

The adjustment accuracy of the motor zoom is factory-set to
±5%. If you need to work more precisely, e.g. when measuring,
the system can be calibrated. The calibration remains stored
until it is changed or canceled.
• Always perform the calibration at a ratchet step
(50.0 in the example).
• Calibration modes: Magnification (C magn.) or reference
distance (C dist.)
• Calibration aids: Specimen micrometer in the specimen plane
and graticule (10447182) in the eyepiece. The diameter of the
inner circle measures 7 mm. To insert the graticule see user
manual M2-105-0.
• The optional gliding stage facilitates the precise movement of
the specimen micrometer.
At Limit If this message appears on the display during calibra-
tion of the reference distance with the handwheel,
you traveled beyond the adjustable range.
Delete the preceding calibration
(see the section on page 13).
Travel to desired zoom ratchet step with
(50.0 in the example).
Initialize calibration with CAL key.
Select calibration mode with
Magnification (C magn.) or reference distance (C dist.),
C magn. in the example
Confirm and display the selection SEL (beep).
Depending on the selected calibration mode continue with the
section "Calibrating CM" or "Calibrating CD".
Display after confirming the selection: CM 50.3 in the example
(CM = process start)
Look into the eyepieces.
Focus the specimen micrometer.
• In the example, the diameter of the small circle of 7 mm at
zoom position 50× corresponds to a distance of 1.40 mm on
the specimen micrometer (7 : 5).
Adjust the magnification with the handwheel so that the
diameter of the small circle (inside line) corresponds to the
distance of 1.40 on the specimen micrometer.
Confirm and display the calibration 2× CAL (beep).
Display (in the example) A 50: A = Marking of the zoom
position used for the calibration
Leica MZ16 A – System operation
key
key: